Patents by Inventor Lakshaman Mahinda Walpita

Lakshaman Mahinda Walpita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Semiconductor crystallization on composite polymer substrates
    Patent number: 6236061
    Abstract: A structure and methodology for providing electronic devices comprised of semiconductor materials deposited and crystallized using a pulsed laser source on oxide and/or metal layers on polymeric and polymer composite substrates of low coefficient of thermal expansion (CTE). The present invention permits the fabrication of inexpensive yet highly efficient electronic devices, such as photovoltaic cells, on the filled substrates by the use of laser annealing techniques.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: May 22, 2001
    Inventor: Lakshaman Mahinda Walpita